Soft or common rush is native to Eurasia, North America, Australia, and New Zealand.
The attractive-looking clumps are sometimes used in landscaping.

Identification: Soft rush reaches 24-48" (60-121 cm) in height, growing
in clumps (“tussocks”) 24-48" (60-121 cm) around. They are at home in acidic, wet soils, such as pond or
swamp edges. Individual stems resemble grass from a distance, but up close, they are
smooth and round, filled with a light pith, and soft to the touch. At the base of each stem there is a dark
”basal sheath” 2-3" (5-7.6 cm) long.
The most notable characteristic is the flower clusters, which
stick out sideways from partway up the stem, looking rather lopsided. Actually, the flowers
are at the stem tips, but a bract (specialized leaf) continues upward, looking like a continuation
of the stem.
Tiny, barely noticeable flowers are yellowish-green to pale
brown.